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On the basis of data and imagery of National Aeronautics and Space Administration (NASA), the situation of stubble burning in the fields of Punjab can be understood. NASA has been studying the impact of stubble burning on air quality in the last few years.
The point visible on this map of Punjab on 25 October 2019 shows the fire that broke out in the fields. It changes every year. The points representing field fires on October 25, 2020 will remain the same.
Sample imagery taken on the same dates in 2021, 2022, 2023 shows similar points. NASA imagery shows a large area with red dots. It is showing incidents of stubble burning in the fields of Punjab.
From 2012 till now, except 2016, stubble was burnt in the fields of entire Punjab. But if you look at the pattern so far in 2023, the numbers indicate that stubble burning in Punjab is at its lowest level since 2012.
Hiren Jethwa, senior research scientist at Morgan State University NASA Goddard Space Flight Center, told NDTV, “I was surprised to see that Punjab and Haryana have the lowest number of fire incidents. We have never seen such a low trend of stubble burning in fields before.” “It appears that Haryana and Punjab received excess rainfall this July and August, resulting in the destruction of some crops.”
The scientist said, “I am a little afraid that the incidents (of stubble burning) have been delayed. Big fires have not been seen so far. This is likely to happen in the coming two weeks.”
According to monitoring agencies, Delhi’s air quality (AQI) was recorded in the “poor” category for the third consecutive day on Wednesday. There is no scope for major improvement in Delhi’s AQI in the next few days. The average air quality index (AQI) of the city was 238 at 10 am on Wednesday. It had reached 220 at 4 pm on Tuesday.
The average AQI of Ghaziabad adjacent to Delhi was 196. While AQI was recorded at 258 in Faridabad, 176 in Gurugram, 200 in Noida and 248 in Greater Noida.
According to the Center Air Quality Early Warning System for Delhi, the city’s air quality is likely to remain between “poor” and “very poor” categories over the next four to five days.
Let us tell you that AQI between zero and 50 is good, AQI between 51 and 100 is satisfactory, AQI between 101 and 200 is moderate, AQI between 201 and 300 is bad, AQI between 301 and 400 is very poor and 401 AQI between 500 and 500 is considered severe.
Delhi’s air quality turned “very poor” on Sunday for the first time since May. The main reason for this was the drop in temperature and wind speed, due to which pollutants accumulated.
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